I have too many segments, upgrade time may not be accurate. All purchased in December, but changed last month, one reservation.
Date: 4/3
Route : SNA-SEA
Flight Number: 1223
Status : MVPG
Fare Class: G
Time the upgrade cleared or position on waitlist if didn't clear: T-110

Date: 4/3
Route : SEA-FLL
Flight Number: 356
Status : MVPG
Fare Class: G
Time the upgrade cleared or position on waitlist if didn't clear: 5/6, 2 upgraded on the list

Date: 4/4
Route : FLL-LAX
Flight Number: 1335
Status : MVPG
Fare Class: G
Time the upgrade cleared or position on waitlist if didn't clear: T-22

Date: 4/4
Route : LAX-SFO
Flight Number: 3453
Status : MVPG
Fare Class: G
Time the upgrade cleared or position on waitlist if didn't clear: T-46

Date: 4/4
Route : SFO-SNA
Flight Number: 3365
Status : MVPG
Fare Class: G
Time the upgrade cleared or position on waitlist if didn't clear: T-1